Escapement-movement foe



DON J. MOZART, OF XENIA, OHIO.

ESCAPEMENT-MOVEMENT FOR AUTOMATIC FANS.

Specification of Letters Patent No. 15,889, dated October 14, 1856.

To all whom t may concern Be it known that I, DON J. MOZART, of Xenia, in the county of Greene and State of Ohio, have invented anew and Improved Automatic F an; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, Figure l being a plan of the movement by which the fan is driven, the fan and top plate of the case being removed; Fig. 2, an elevation of the `whole fan; Fig. 3, a plan of the scape-wheels and fan-spindle detached; Fig. il, an elevation of the fan-spindle.

Like letters designate corresponding parts in all the figures.

The fan is propelled by ordinary clock` work, but regulated in my improved man-` ner. The movement is mounted in any suitable frame, or case, which may constitute a stand, for setting upon a table, or shelf; or may be provided with a suit-ableclamp, to secure it,in any position, to a chair, bedpost, or wherever it may be desired. I employ a main-spring A, on t-he spindle of which is a driving wheel B, gearing into a pinion on the shaft of another` large wheel O. Two scape-wheels D, E, (presently to be described), are mounted on the same vertical spindle, the one a little distance above the other, and one or both turning loosely on the spindle, so that they may turn in opposite directions, by motion communicated directly or indirectly from the same cogwheel O. The upper scape wheel D, is provided with a pinion, into which said cogwheel O, immediately gears. To drive the other scape wheel E, in the opposite direct-ion, the cog-wheel C, gears into a pinion, (of the same size as the pinion of the scape wheel D,) turning on a spindle suitably situa-ted at a proper dist-ance from the scape wheels. A cog-wheel G, on the spindle of said separate pinion, gears into another cogwheel H, of the same size, attached to the lower scape-wheel E, and thus communicates the motion required to said scape wheel.

In order to apply the force continuously to the fan, and at the same time keep its motion at a proper and uniform speed, the scape-wheels D, E, are constructed in a peculiar manner. Each has alternate sections of teeth, cl d d, e e e, and spaces between them, the spaces being a little wider than `spindle in the other direction.

the sections; and the respective sections of each scape-wheel, gear alternately into a pinion f, On the fan spindle I, thereby alj ternately turning said spindle in opposite directions. The respective pinions of these scape wheels, (when the machine is put together,) are so geared into the wheels which drive them, that while the cogs of the one scape wheel match with the leaves ofthe pinion on the fan spindle, the spaces of the other scape wheel are opposite said pinion. Hence, the momenta section on one scape wheel leaves said pinion on the fan spindle, the nearest section of the other scape wheel seizes upon said pinion and turns thefan Thus, the continuous motion of the scape wheels in opposite directions, produces a constant, but rotary reciprocating motion of the spindle. The extent to `which they turnthe fan spindle depends upon the relative number of teeth on the pinion f and each of the sections a?, cl, d, 'and e, e, e. If the number is equal uon each, the fan spindle will make a complete revolution at each oscillation. Since these sections of the scape-wheels act continuously, but alternately, it is obvious that a continuous impulse is given to the fan thereby. In this way only can a fan be moved by the intervention of a scapewheel; for a momentary impulse communicated to the fan spindle, like that given by the various clock and watch escapements, could not keep the fan in motion. On the other hand, the momentum acquired by the fan, would prevent the change in the direction of the motion at each oscillation, being eiiected suiliciently quick to keep the fan in mot-ion, except by producing undue shock upon the machinery, unless some eiifect-ive device is employed to obviate it. To accomplish this, I employ a banking-pin M, which projects from the pinion f, on the fan spindle, and is provided with two projections g, and It, the one so arranged as to strike the sections d, d, ol, of the scape-wheel D, and the other, so as to strike the sections e, e, e, of the scape-wheel E, substantially as represented in the drawings. These projections, as the fan spindle is brought around alternately in opposite directions, in `turn meet the sections d, cl, cl, and e, e, e, of the scape wheels, and completely check the motions thereof at the proper time; but immediately yield to the continuous pressure of the machinery upon the scape wheels, and more `in the other direction to meet in turn theV sections of the other scape-Wheel. This insures venient arrangement so that the fan may be detached When it is desired, for substituting another of dierent size or form. The fan thus placed on the fan spindle, I employ as the regulator of the movement of the machine, thereby dispensing with other modes of regulating. By using fans of diii'erent sizes, or by Varying the size of a single fan, different velocities of movement may be obtained.

The Whole machine, except the fan itself, may be inclosed in a glass cover, to protect the movement beneath. This may be of elegant form, and the Whole fan may be made highly ornamental.

The Whole machine can be made at a small cost, so as to run any desired length of time. It will be found very useful, especially for fanning the sick, and those asleep, both to promote comfort, and to keep away ies and other insects. It is also Well adapted to the use of tables, for keeping away insects, and for refreshing those sitting near.

Vhat I claim as my invention and desire to secure by Letters Patent, is-

In combination With the sectional scape- Wheels D, E, the banking pin M, meeting the sections thereof at each vibration, substantially in the manner and for t-he purposes herein set forth.

The above specification signed by me this eleventh day of August 1856.

DON J. MOZART.

Witnesses:

GEO. W. ADAMS, J. S. BROWN. 

